Machine for making wooden curry-combs



(No Model.)

0. A. MAHLE. MAGHINE FOR MAKING WOODEN QUERY GOMBS. No. 411.345.Patented Sept. 17, 1889.

i I E H 17 fr UNITED STATES PATENT OFFICE.

CLEMENCE A. MAHLE, or ooEEY, PENNSYLVANIA.

MACHINE FOR MAKING WOODEN CURRY-COlVIBS.

SPECIFICATION forming part of Letters Patent No. 411,345, datedSeptember 17, 1889.

Application filed April 26, 1889- Serial No. 308,649. (No model.)

T0 or whom it may concern.-

Be it known that I, CLEMENcE A. MAHLE, of Corry, in the county of Erieand State of Pennsylvania, have invented certain new and usefulImprovements in Machines for Making W'ooden Curry-Combs; and I do herebydeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itpertains to make and use it, reference being had to the accompanyingdrawings, which form part of this specification.

My invention relates to an improvement in machines for making woodencurry-combs; and it consists in the combination of astationary-revolving bit for boring the holes in the block, ablock-holder which has both an endwise and lateral adjustment, so as tomove the block under the bit, a verticallymoving support upon which theblock-holder is placed, a slide connected to the treadle, and a leverwhich engages with a ratchet on the under side of the block-holder, aswill be more fully described hereinafter.

The objects of my invention are to produce a machine for making woodencurry-combs, and in which the parts are so arranged that when the blockis raised to the revolving bit to have a hole bored a punch forces a pininto the hole last bored and at the same time that a new hole is beingbored, and to adjust the block-holder endwise by means of a treadle.

Figure 1 is a side elevation of a machine which embodies my invention,partly in section. Fig. 2 is a front View. Fig. 3 is ahorizontal sectiontaken on the line ooocof Fig. 2.

A represents a suitable standard or support, upon the upper end of whichis journaled the driving-pulley B, which is driven by the belt 0, andfrom which pulley B extends the belt D around the pulley F on the upperend of the revolving bit-shaft G, which is journaled in suitablebearings I-I, prepared for it. This shaft G has only a rotary movement.

Cast with the standard A is a suitable support I, upon which theblock-holder and its attachments are supported. The outer face of thissupport I is made dovetailed, as shown in Figs. 2 and 3, and inside ofthe dovetailed groove is placed the vertically-moving support J, uponthe top of which the block-holder is placed. In the outer face of thesupport J is also formed a dovetailed groove, in which thevertically-moving slide L is placed. The support J has a rising andfalling movement in the front edge of the support I sufficiently greatto raise the bruslrblock up to the bit. This vertical movement is causedby first forcing up the slide L by the treadle, and then after the slidehas been moved as far as possible the movement is transferred to thepart J by the pressure of the lever U against the under side of thecarriage P. To the lower end of this slide Lis connected the treadle Mby means of the connecting-rod N. Upon the top of the support J areformed the dovetailed guides O, and moving endwise upon these guides Ois the carriage P, upon which the block-holder Q is laterallyadjustable. Extending laterally across the top of the carriage P, whichis provided with the ratchets R on its under side, is the dovetailedguide S, which serves to hold the block-holder Q, in a straight line asit is adjusted laterally across the top of the carriage and so as tobring the block into position to have a new row of holes bored in it.Upon the top of the guide S is formed a series of cogs, ratchets, orstops of any kind and with which the spring T, provided with a catch atits outer end, engages. Each one of the notches, ratchets, or teethindicates the distance between the rows of holes to be bored and rows ofpegs which have been stuck in the block. The ratchets R, on the underside of the can riage I regulate the distance between the holes and pegsin each row. Pivoted to the vertically-moving slide L is the lever U,and secured to the slideare the two stop-pins V WV, which regulate thedistance that the lever shall turn upon its pivot. Secured to the lowerend of the lever is a spring Y, for re= turning the lever to position assoon as it is left free to move.

The operation of my invention is as follows: The block Z is secured inthe block-holder Q by means of a thumb-screw or other similar device,and then the block-holder Q is adj usted upon the guide S, so that thefirst row of holes will be bored in the proper position. The carriage Pis moved outward upon the dovetailed guides 0 until the end of the blockis brought under the bit. The operator then depresses the treadle M,which first forces the slide L upward, so as to bring the upper end ofthe lever U in contact with the first one of the ratchets R, and thispressure causes the carriage to be moved forward one ratchet. After thecarriage P has been forced for ward by the lever U the continuedpressure upon the treadle M lifts the support J, the carriage, and theblock-holder to the bit X, when the first hole is bored. As the pressureupon the treadle ceases all of these parts sink back into their normalposition, and the operator then drops a wooden peg into the cup E, whichis supported in a line with the bit X, but to one side of it, so thatwhen the blockholder is next raised the punch a, which is in a directline over the cup E, will force the peg into the hole immediately underthe cup. While a new hole is being bored by the bit X, a peg is beingforced into one of the holes which has already been bored, thus enablingthe operation of driving the pegs and boring the holes to be done at thesame time. After the carriage has been moved the full length of theblock the operator raises the outer end of the spring T and moves theblock-holder one notch upon the guide S, so as to bring the block intoposition to have another row of holes bored in it. The operator must,after the machine has once been set into operation, drop the peg intothe cup E by hand, adjust the block-holder laterally, and operate thetreadle M until a full row of holes has been bored again. As soon as thetreadle M isdepressed, so as to withdraw the upper end of the lever Uout of contact with the ratchet R, the spring Y draws the lower end ofthe leverU back into an almost vertical position, so as to adjust it toengage with another ratchet when the slide L is raised. The upwardpressure upon the slide causes the lever U to force the carriage forwardone notch.

Having thus described my invention, I claim 1. The combination of therevolving bit, the laterally-adjustable block-holder placed upon the topof the carriage, the endwisemovable carriage placed upon theverticallymoving support, the vertically-moving support upon which thecarriage is placed, avertically-moving slide provided with aspringactuated lever for moving the carriage endwise, and a treadlewhich first operates the slide for moving the carriage endwise and thenraises the support, so as to feed the block being bored to the bit,substantially as shown.

2. The combination of the stationary rotating bit, a stationary punch,and a cup placed above the block-holder with a laterally-adjustableblock-holder, an endWise-moving carriage, a vertically-moving supportupon which the carriage is placed, a vertically-moving slide, a pivotedspring-actuated lever attached to the slide, and a treadle,substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

c. A. MAHLE.

Vitnesses:

E. P. ELLIs, L. L. BURKET.

